A large flexible balloon contains 1.5moles of a gas in a volume of 27liters. If 1.1moles of the gas are removed and the pressure and temperature do not change, what will be the new volume of the gas? Round to two significant figures.

Adrop of acetone (nail polish remover) has a mass of 35 mg and a density of 0.788 g/cm3. what is its volume in cubic centimeters?

Astudent carefully transfers 30 g of water and 30 g of alcohol in a glass tube, forming two layers and filling the tube completely. after sealing the tube, the student mixes the solutions, and notices a bubble that forms in the tube. what is the mass of the contents in the glass tube after mixing?

How would the number of moles (n) of o2 change if the atmospheric pressure doubled but all other variables stayed the same